Occurs when a substance emits light after absorbing light or other electromagnetic radiation of a different wavelength.

a.) incandescence
b.) prominence
c.) fluorescence

Achild throws a ball with an initial speed of 8.00 m/s at an angle of 40.0° above the horizontal. the ball leaves her hand 1.00 m above the ground. how long is the ball in flight before it hits the ground?

Write the correct abbreviation for each metric unit

Which of the following is the main energy source for the sun? a. fission of hydrogen b. fusion of hydrogen c. fusion of helium d. fission of iron